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| Latest News |
| Norbain will be using IFSEC 2012 to officially launch their new professional service offering, Norbain Service Plus. Designed to complement installers own skill sets, Service Plus offers a range of services that can be used to reduce the risk of installations, minimise time spent on site by engineers and make new technologies, such as IP Surveillance, more accessible. |
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Technical support > Support selection > Glossary
Glossary
| 100BASE-T |
A high-speed version of Ethernet (IEEE 802.3). Also called Fast Ethernet standard, 100BASE-T transmits at 100 Mbps. |
| 20mA Current loop |
A type of serial communication in which the presence or absence of an electrical signal indicates the state of the bit being transmitted. |
| 2B+D |
ISDN’s basic service is called Basic Rate Interface or BRI. BRI is made of two 64-kbps B channels and one 16-kbps D channel (2B+D). |
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